Appendix A - Definitions, Acronyms, and Abbreviations

The following table provides the definitions of all terms, acronyms, and abbreviations used in this document.

Term Definition
AMS American Meteorological Society
CCTV Closed Circuit Television
ConOps Concept of Operations
DMS Dynamic Message Sign
DOT Department of Transportation
DTN Data Transmission Network
ESS Environmental Sensor Station
FHWA Federal Highway Administration
HAZMAT Hazardous Materials
MARC Mid-America Regional Council
MDSS Maintenance Decision Support System
MoDOT Missouri Department of Transportation
NDFD National Digital Forecast Database
NHI National Highway Institute
NOAA National Oceanic and Atmospheric Administration
NWS National Weather Service
RWIS Road Weather Information System
SRS System Requirements Specification
SysAD System Architectural Description
TIC Transportation Information Center
TMC Transportation Management Center
TOC Transportation Operations Center
U.S. DOT United States Department of Transportation
WRS Weather Response System



Publication Number: FHWA-HOP-07-067
EDL Number: 14338

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